Sheet pack opening mechanism



Dec. 12, 1944.

C. E. DE WALT SHEET PACK OPENING MECHANISM Filed July 3, 1943 4 Sheets-Sheet l Inventor Wye/we; Us

Dec. 12, 1944. c. E. DE WALT 2,364,780

I SHEET PACK OPENING MECHANISM 7 Filed July :5, 1943 4 Sheets-Sheet 2 I nz/ehtor a/mg mwy Z? M35 Dec. 12, 1944. c. E. DE WALT 2,364,780 I EEEEEEEEEEEEEEEEEEEEEEE SM Dec. 12,1944. 7 Q 5 DE WALT 2,364,780 I 2 g QE'WWMWM Patented Dec. 12,1944

SHEET PACK OPENII VG MECHANISM Charles Eugene De Walt, deceased, late of Canonsburg, Pa., by Alice F. De Walt, administratrix, Pittsburgh, Pa., assignor of ten per cent to John Michael Gura, Struthers, Ohio Application J uly- 3, 1943, Serial No. 493,470

3 Claims.

The present invention relates to improvements in mechanisms for opening sheet packs, the principal object in view being to provide a simply constructed,.efllcient mechanism for separating sheets in tin packs which have adhered together in the rolling mill and efl'ecting such separation completely and quickly without damage to the other and subordinate objects are also comprehended by the'invention, all of which, together with the precise'nature of the improvements, will be readily understood when the succeeding description and claims are read with reference to the drawings accompanying and forming part of this specification. V

In said drawings i- 1 Figure 1 is a view in side elevation of the invention in its preferred embodiment,

Figure 2 is a view in end elevation looking at the intake end of the mechanism,

. Figure 3 is a view in vertical longitudinal section taken on the line 3 3 of Figure 2,

Figure 4 is a detail view-similar to Figure 3 illustrating the manner in which the rollers operate,

Figure 5 is a view in perspective of one'of the corrugating rollers,

Figure 6'*isa similar view of one of the idler rollers,

Figure 7 is a fragmentary view in perspective 4 of one of the bridgingplatea.

Figure 8 is assimilar view of one ofthe I beams, I,

Figure 9 is a tion taken on the line,88 of Figure 3 and drawn to an enlarged scale, Figure -10'is a view ll'LDGFSDfiOtiYe of one of the slide bearings, and

C Figure 11 is asimilar .view of one of the cap bearings. I Referring to the drawings bynumerals, according to the present invention, 'a' sheet pack opening mechanism is provided comprising a pair of elongated side frames I, 2 of any suitable construction, in other respects than as heredetailed view in horizontal sec-' inafter specified, and between which is'interposed a series of longitudinally spaced pairsof'upper and lowertransverse rollers di'sposed' parallel in each pair, the pairs being equidistantly spaced apart, substantially, in close together relation,

preferably. The series of rollers comprises a battery of three pairs of longitudinally ribbed, or

toothed, corrugating rollers designed by pairs, 4, and 5, and which are spaced apart successively from one end of the mechanism constituting the intake end thereof,-'a battery of three pairs of smooth finishing rollers spaced apart successively, equidistantly, from the innermost pair 5 of corrugating rollers and designated by pairs 6, I, and 8, and pairs of like, smooth idler rollers of relatively'sma ler diameter than the rollers of said batteries and succeeding these pairs 3, I, 5, 6, and I, and being designated by pairs 9, I0, II,

I2, and I3.

The pairs of corrugating rollers 3, l, and 5, are

provided with the same number of ribs II or teeth, in each instance, and arranged in in ermeshing relation in each pair, but, spaced apart circumferentially in greater degreein each succeeding pair as compared with the preceding pair.

The lower rollers, designated I5, I6, II, I8, I9

;and 20 of the pairs 3 to 8, are provided with end cap bearings ll and tension adjusting studs '31 threaded downwardly through plates 34 bridging the upper ends of the guide ways 23 and bolted, as at 35, on topHaLthe frames I, 2,,

Theupper and lower rollers 3 8, 31 of the idler pairs 9' to I3 are mounted in the frames I, 2 in the same manner as the rollers of the pairs 3 to -8, with the exception that the cap bearings 38 for the trunnions 39 of the upper rollers 36 are free to move upwardly.

As will now be clear, the upper rollers 24 to 29.

of the pairs 2 to 8 are yieldingly movable upwardly in opposition tothe springs 32, whereas, the upper rollers 36 of the idler pairs 9 to I3 are freely movable, being free from'tension.

The lower rollers I5 to 20- of the pairs [to 8 are driven at the same rate of 'speed and in the proper" direction, 1. e., counter-clockwise as viewed in Figure l, to cause said pairs to feed sheet packs gripped between the pairs from the intake end of the mechanism and out of the opppsite, dischargeend thereof. For this purpose, f

the trunnions'2I on one side of the,inechanism are provided with like gear wheels 40 fast thereon and suitably connected by idlergears II mount-t v ed on stud, shafts 42 on the frame 2, and the trunnion 2|, on the opposite side of the 'mechanism, of the lower roller I5 of the pair designated 8 is motor driven by a suitable motorl and a pair oi reduction gears ll, 45. A iiy wheel ll lower roller 2o 01 the pair designated 0.

The frames l, 2 are connected together at the ends thereof by suitable pairs of I beams 41 secured to said frames by brackets 48 and bolts 49. A short feed table 50 is provided at the intake end of the mechanism.

Referring now to the operation of the described mechanism, a sheet pack 60 passing through the battery of corrugating rollers is corrugated transversely by the pairs of rollers 3,

l, 5 with corrugations spaced successively i'urther apart by the teeth N of the successive pairs. The result is that the pack is subjected to impact by the revolving teeth throughout its entire length and the sheets completely separated. The pack then passes between the fin-- ishing rollers of the pairs 8, I, 8 which act by compression to straighten out the sheets. The pairs of idler rollers 9 to It, as will be clear,

vmay be provided on one end trunnion II of the are interposed substantially in the line of travel of the pack 80 to guide the pack intermediate the pairs of rollers 8 to 8 and prevent the sheets from buckling intermediate said pairs of rollers 3 to I.

The foregoing will, it is believed, sufllce to im- .mit a stack to pass between the rollers of said pairs, and means to .drive the lower rollers of the pairs of said series, in eachbattery in the same direction and at the same speed, thribs of the corrugating rollers being differently spaced around the rollers of each pair thereof.

2. In a mechanism for opening sheet packs, a

pair of side frames, a series of pairs of upperand lower transverse rollers between said frames spaced apart in side-by-side substantially equidistant relation, and including a battery of lon-,

gltudinally ribbed corrugating rollers arranged in succeeding pairs, and a battery of smooth finishing .rollers also .arranged in succeeding pairs, and pairs of relatively smaller rollers alternating with the pairs of rollers of each battery, the upper rollers of the-pairs of said series being mounted for vertical yieldin movement to permit a stack to pass between the rollers of the pairs of said series, and means to drive the lower rollers of the pairs of said series, in each battery in the same direction and at the same speed, the ribs of the corrugating rollers being spaced further apart around the same insucceeding pairs thereof than in preceding pairs.

8; In a mechanism for opening sheet packs,

a pair of side frames, a series of pairs of upp r and lower transverse rollers between said frames part a clearunderstanding of the invention without further explanation.

Manifestly the invention, as described, is susceptible of modification without departing from the inventive concept, and right is herein reserved to such modifications as fall within the scope of the amended claims.

spaced apart in side-by-side substantially equidistant relation, and including a battery of iongitudinally ribbed corrugating rollers arranged in succeeding pairs, and a battery of smooth finishing rollers also arranged in succeeding pairs,-and pairs of relatively smaller rollers alternating with the pairs ,of rollers of each bat tery, the upper rollers of the pairs of said series being mounted for vertical yielding movement to permit a stack to pass between the rollers of the pairs of said series, and means to drive the lower rollers of the pairs in each battery in the same direction and at the same speed, the ribs 01' the corrugating rollers being spaced further apart around the same in succeeding pairsthereof than in preceding pairs, and corresponding in number on each roller..

ALICE F. DEWALT, Administratria: of the Estate of Charles Eugene De Walt, Deceased. 

